Home | Round Flat Washers - Precision Stamped in Any Material

Round Flat Washers - Precision Stamped in Any Material

Round flat washers are fundamental components in fastener assemblies, providing load distribution, surface protection, and vibration resistance across virtually every industry. Superior Washer & Gasket Corp manufactures round flat washers in a comprehensive range of materials-including aluminum, brass, copper, stainless steel, carbon steel, nylon, PTFE, and specialty alloys-in standard and custom sizes to precise tolerances.

As an ISO 9001:2015 certified flat washer manufacturer, we maintain one of the largest inventories of round flat washers available from a domestic source. Whether you need standard washers by the thousand or special flat washers produced to your custom specifications, our washer manufacturing capabilities deliver fast, reliable solutions made in the U.S.A.

  • Round flat washers in metals, plastics, and specialty materials
  • Broad standard size inventory for fast delivery
  • Custom flat washers stamped to your specifications
  • ISO 9001:2015 certified quality management
  • Made in the U.S.A. with material certifications available
SKU ID OD Thickness Material ID TOL OD TOL Quantity

650-6166-062

ID 0.264
OD 0.734
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6167-077

ID 0.447
OD 0.752
Thickness 0.077
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6168-060

ID 0.379
OD 0.935
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6169-018

ID 0.752
OD 0.947
Thickness 0.018
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-617-030

ID 0.144
OD 0.372
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6170-063

ID 0.217
OD 0.985
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6171-071

ID 0.356
OD 0.987
Thickness 0.071
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6172-046

ID 0.199
OD 1.001
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6173-032

ID 0.498
OD 1.123
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6174-183

ID 0.405
OD 1.184
Thickness 0.183
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6175-120

ID 0.503
OD 2.499
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6176-088

ID 0.316
OD 2.999
Thickness 0.088
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6177-020

ID 0.08
OD 0.188
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6178-016

ID 0.093
OD 0.196
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6179-025

ID 0.126
OD 0.31
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-618-040

ID 0.144
OD 0.375
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6180-033

ID 0.127
OD 0.316
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6181-059

ID 0.251
OD 0.562
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6182-062

ID 0.25
OD 0.585
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6183-062

ID 0.405
OD 0.62
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6184-032

ID 0.318
OD 0.733
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6185-184

ID 0.413
OD 0.907
Thickness 0.184
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6186-104

ID 0.529
OD 1.065
Thickness 0.104
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6187-248

ID 0.0
OD 1.156
Thickness 0.248
Material Steel Low Carbon
ID TOL
OD TOL +-.005
Quantity

650-6188-046

ID 0.72
OD 1.371
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6189-061

ID 0.209
OD 1.449
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-619-060

ID 0.144
OD 0.38
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6190-063

ID 0.198
OD 1.598
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6191-026

ID 0.438
OD 1.878
Thickness 0.026
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6192-129

ID 1.065
OD 2.0
Thickness 0.129
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6193-043

ID 0.207
OD 0.312
Thickness 0.043
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6194-030

ID 0.172
OD 0.347
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6195-032

ID 0.17
OD 0.354
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6196-037

ID 0.19
OD 0.377
Thickness 0.037
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6197-074

ID 0.26
OD 0.467
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6198-030

ID 0.254
OD 0.505
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6199-020

ID 0.359
OD 0.551
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-62-020

ID 0.082
OD 0.186
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-620-040

ID 0.144
OD 0.386
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6200-061

ID 0.253
OD 0.585
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6201-060

ID 0.435
OD 0.621
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6202-030

ID 0.221
OD 0.751
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6203-048

ID 0.191
OD 0.751
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6204-060

ID 0.383
OD 0.819
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6205-030

ID 0.43
OD 0.876
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6206-034

ID 0.487
OD 0.922
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6207-060

ID 0.671
OD 0.936
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6208-090

ID 0.211
OD 0.984
Thickness 0.09
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6209-065

ID 0.532
OD 1.0
Thickness 0.065
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-621-015

ID 0.144
OD 0.4
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

Meeting Your Manufacturing, Material, And Quality Requirements

Numerous factors affect the quality and long-term performance of flat washers. As a U.S.-based manufacturer and an ISO 9001:2015 certified company, we assure you that all parts we ship are manufactured domestically. We offer metal washers made from a diverse range of materials, including conventional options like copper stampings, aluminum washers, and stainless steel washers (which can include passivation). We also specialize in plastic washers and exotic materials like Inconel, Nylatron washers, and Monel. Additionally, we can quote a variety of platings including zinc, cad yellow, and black ox to suit your specific needs.